Valve for gas-burners.



E. S. ALLEN.

VALVE FOR GAS BURNEBS. APPLICATION FILED SEPT. 25, 1911.

Patgnted Nov. 25, 1913.

I/VVE/VTUR 2296/16 JJf/[em WITNESSES ATTORNEYS PATENT OFFICE.

EUGENE S. ALLEN, OF NEW YORK, N. Y.

VALVE FOR GAS-BURNERS.

Specification of Letters Patent.

Patented Nov. 25, 1913.

Application filed September 25, 1911. Serial No. 651,181.

To all whom it may concern Be it known that I, EUGENE S. ALLEN, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Valve for Gas-Burners, of which the following is a full, clear, and exact description.

My invention relates to gas burners, my more particular purpose being to produce an article of this kind having a number of its movable parts located within a sleeve forming part of the burner and rendered detachable for the purpose of facilitating the removal and replacement of said movable parts.

My invention further compreh'ends a burner in which various passages are formed directly in the body of an integral member of metal and thereby prevented from belng readily disarranged as well as adapted to be more cheaply manufactured.

My invention further comprehends various details peculiar to burners and intended to promote the efficiency thereof.

My invention admits of general use, and is of special value in connection with tailor stoves, laundry stoves, soldering iron heaters, hot plates, ranges and the like. For the sake of simplicity I show the invention as applied to a small stove and to a hand operated burner.

Reference is to be had to the accompanying drawing forming a part of this speci fication in which like characters of reference indicate corresponding parts in all the views, and in which Figure 1 is a longitudinal vertical section through a small stove equipped with my improved valve; Fig. 2 is a fragmentary section substantially on the line 22 of Fig.

1, looking in the direction of the arrow; Fig. 3 is a detail showing a detachable sleeve and parts immediately associated therewith; Fig. 4 is a side elevation showing my improved valve as applied to a hand burner; and Fig. 5 is a detail showing the construction of the anti-friction bearing at the top of the plunger piston.

A stove frame 4 is supported upon legs 5 and is provided with an annular bead 6 upon which is fitted a grid 7 having a substantially circular form and known in this art as a hot plate, this member being slightly tilted, as indicated in Fig. 1, and resting one of its edges upon the adjacent portion of the annular head 6, as shown at the left of said figure.

A pair of supporting straps 8 are secured upon the underside of the frame 4 by aid of screw bolts 9 and revoluble nuts 10. Integral with the straps 8 and supported thereby is a barrel 11 having a thick wall, a portion of this wall being raised so as to form a head 12 integral with it. This bead terminates in a pilot burner 13 and is provided wlth a passage 14, extending longitudinally through the bead 12. A cross passage'15' is connected with one end of the passage 14 and merges into a large central passage 16 with which the barrel 11 is provided. A gas ring 17 made of metal is provided with gas holes 18 and is integral with the barrel. The barrel is provided with an air hole 19 and with an adjustable door 20 for regulating the supplyof air drawn through the air hole and into the passage 16.

A hand valve 21 is connected with the barrel l1 and is provided with a connecting nipple 22 for facilitating the connection of this hand valve to a gas tube or other source of gas supply. A small screw 23 (see Fig. 2) is employed for choking the passage'14 to any desired extent so as to thus regulate the supply of gas passing to the pilot burner 13. This supply of gas, it will be noted, is independent of the supply of gas to the central passage 16, and, consequently, to the gas ring 17 or burner proper.

The sleeve 24, having a substantially frustoconical form, is provided with an angular head 25 and with a by-pass 26. The sleeve is'generally of a tubular form and is provided with two holes 27 in registry with each other. :is provided with a thread 28. A cap 29 is threaded internally and is. adapted to fit upon this lower end. The cap 29 is provided The lower end of the sleeve 24 with a milled surface 30 to facilitate the turning of the cap by hand in order to fit upon the lower end of the sleeve 24 or to disconnect it from the same. A spiral spring 31 is fitted into the cap 29 and extends up into the lower end of the sleeve. To accommodate this spring the cap is provided with a passage 32.

A. piston plunger 33 is slidably fitted into the sleeve 24 and is provided with an annular bead 34 and with an annular notch 35. The piston plunger is further provided with a reduced portion 33 integral with it and ,mounted upon its lower end; also with an the relative movement between the hot plate and the upper end of the piston valve is rendered easy. An adjusting screw 36 is mounted upon a massive portion 37 of the barrel 11 and is revoluble by hand for the purpose of adjusting the play of the piston plunger 33.

WVhen the sleeve 24 is fitted relatively to the barrel 11, the by-pass 26 registers with the passage 14.

I burner is shown at 13.

The operation of the mechanism shown in Figs. 1, 2 and 3 is as follows: The parts being arranged as above described and proper adjustments being made, the pilot burner 13 is lightedso that its flame appears as indi- "cated at 13. The spring 31 keeps the piston plunger 33 normally raised so as to tilt the hot plate, as above described. A vessel to be heated is now rested upon the hot plate 7.

' The weight of the vessel depresses the piston plunger 33 so that the annular notch 35 is "brought into registry 'with the holes 27.

Normally the supply of gas is cut off by virtue of the fact that the notch 35 is out of registry with these holes, as will be understood from Fig. 1, but the depression of the piston plunger 33 establishes a flow of gas diametrically through the sleeve 24, and as this gas mingles with a supply of air enter- .ing through the air hole 19 and the mixture passes out through the gas holes 18, it is lighted by the adjacent flame 13 of the pilot burner. The hot plate 7 and the vessel which rests upon it are thus heated. The vessel being lifted ofl, the piston plunger 33 is raised by the spring 31 so that the hot plate is restored to its normal condition, the main flame being extinguished, but the pilot flame remaining unaffected.

In the form of my invention shown in Fig. 4, I provide a handle 38 and a body member 39, the latter having an enlarged cylindrical portion 40 through which extends a frusto-conical hole. Extending through this hole is a sleeve 41 having the proximate form ofthe sleeve 24 above de-.

scribed, and provided with a head 42. A cap 43 having a milled surface 44 is fitted upon the lower end of the sleeve 41 in the same manner that the cap 29 fits upon the sleeve 24. A pistonplunger 45 is provided with a "head 46 integral with it and serving the purpose of. a thumb piece. The piston plunger 45 is also provided with an annular bead 47 integral with it, this bead carrying a small pin 48 extending radially from it. A hook 49 is secured rigidly upon the body member and is adapted to hold the piston plunger 45 in its lowermost position whenever the pin The flame of the pilot 48 is brought properly into engagement with the hook 49.

The mechanism within the sleeve 41 is identical with that contained within the sleeve 24. An adjusting screw 50 is provided with a head 51 by aid whereof it may I be turned. Another screw 52, corresponding to the screw 23, shown in Fig. 2, is used to regulate the supply of gas to the pilot flame.

A burner tube 53 is provided with an air hole 54 and with an adjusting sleeve 55 by aid whereof the supply of air into the burner tube may be regulated at will. Extending lengthwise of the burner tube and contained therein is a smaller tube 56 which serves to supply gas to the pilot flame 57.

Whenever the hot plate is depressed the anti-friction bearing carried upon the upper end of the piston plunger causes the movement to take place with a minimum of friction between the hot plate and the plunger.

The operation of the device shown in Fig. 4 differs from that appearing in the other figures chiefly in the fact that the operator, by grasping the handle 38 and pressing with his thumb upon the thumb piece 46, causes the piston plunger 45 to be depressed to any desired extent, and by turning the thumb piece 46, may cause the pin 48 to make a locking engagement with the hook 49. When this is done the main supply of gas through the burner tube 53 is turned on, though it has no effect upon the pilot flame 57.

I do not limit myself to the exact construction above shown, nor to the use of any particular materials, the scope of my invention being commensurate with my claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. The combination of a burner provided with a barrel arranged for connection with a source of gas supply, the said barrel having a hole of frusto-conical form extending diametrically through it intermediate the ends of the barrel, a detachable sleeve of frusto-conical form extending through the said hole, the said sleeve having a cylindrical bore and being provided with transverse holes in register with the bore of the said barrel for permittinggas to flow through the said sleeve, a piston plunger slidably mounted in the said sleeve and provided with a reduced portion normally out of register with the said sleeve holes and adapted to be moved into register with the said sleeve holes on pressing the piston plunger downward, the upper end of the said piston plunger extending through the upper end of the said sleeve, actuating means engaging the upper end of the said piston plunger to move the same downward in the sleeve, a cap screwing on the lower end of the said sleeve and abutting against the said barrel to hold the sleeve in position on the barrel,

and a spring in the said cap and pressing the said piston plunger to hold the latter in normal closed position.

2. The combination of a burner provided with a barrel arranged for connection with a source of gas supply, the said barrel having a hole of frusto-conical form extending diametrically through it intermediate the ends of the barrel, a detachable sleeve of frusto-conical form extending through the said hole, the said sleeve having a cylindrical bore and being provided with transverse holes in register with the bore of the said barrel for permitting gas to flow through the said sleeve, the base end of the said sleeve having a collar seated on the barrel and the lower end of the sleeve being provided with exterior screw threads, a piston plunger slidably mounted in the said sleeve and provided with a reduced portion normally out of register with the said sleeve holes, and adapted to be moved into register with the said sleeve holes on pressing the piston plunger downward, the upper end of the said piston plunger extending through the upper end of the said sleeve, actuating means engaging the upper end of the said piston plunger to move the same downward in the sleeve, a cap screwing on the said threaded end of the said sleeve and abutting against the said barrel to hold the sleeve in position on the barrel, and a spring in the said cap and pressing the said piston plungerin an outward direction to hold the piston plunger in normal closed position.

3. The combination of a burner provided with a barrel arranged for connection with a source of gas supply, the said barrel having a hole of frusto-conical form extending diametrically through it intermediate the ends of the barrel, a detachable sleeve of frusto-conical form extending through the said hole, the said sleeve having a cylindrical bore and being provided with transverse holes in register with the bore of the said barrel for permitting gas to flow through the said sleeve, a piston plunger slidably mounted in the said sleeve and provided with a reduced portion normally out of register with the said sleeve holes and adapted to be moved into register with the said sleeve holes on pressing the piston plunger downward, a cap screwing on the lower end of the said sleeve and abutting against the said barrel to hold the sleeve in position on the barrel, a spring in the said cap and pressing the said piston plunger to hold the latter in normal closed position, an annular bead on the said piston plunger outside of the said sleeve, and a limiting screw screwing in the said barrel and having a head engaging the said annular bead to limit the upward movement of the said piston plunger.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

EUGENE S. ALLEN.

Witnesses:

WALTON HARRIsoN, PHILIP D. RoLLHAUs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

